Self-filling fountain-pen.



W. A. WELTY. SELF FILLING FOUNTAIN PEN. APPLICATION FILED APR. 27, 190s.

Patented Mar. 30, 1909.

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WILLIAM A. WELTY, OF WATERLOO, IOWA.

SELF-FILLING FOUNTAIN-PEN.

Specification of Letters Patent.

Patented March 30, 1909.

Application filed April 27, 1908. Serial No. 429,347.

To all whom it may concern:

Be it known that 1, WILLIAM A. 'WnL'rY, a citizen of the United Statesof America, and a resident of Waterloo, Blackhawk county, Iowa, haveinvented certain new and useful Improvements in Self-FillingFountain-Pens, of which the following is a specification.

My invention relates to improvements in self-filling fountain-pens, andthe object of my improvement is to provide a two-piece barrel adapted tocontain the compressible ink-reservoir and pressure-bar, such barrelbeing so slotted at the point of connection of its parts, that when theparts are removably secured together the pressure-bar is thereby heldout of compressing contact with the said ink-reservoir, but when saidparts are somewhat disconnected or moved to a certain extent relative toeach other, the pressure-bar is so released that it may be manipulatedto compress said reservoir. This object I have accomplished by the meanswhich are hereinafter described and claimed, and which are illustratedin the accompanying drawings, in which:

Figure 1 is a perspective of the outside of my improved self-fillingfountain-pen, with its parts assembled. Fig. 2 is a longitudinal centralsection of the same. Fig. 3 is an enlarged fragmentary detail of therear part of the barrel, showing the peculiarly formed slot providedtherein for the reception of the pressure-bar finger-piece. Fig. 4 is aperspective of the compressible ink-reservoir and the ressure-bar, asdisassembled from the barre of the fountainpen.

Similar characters of reference refer to corresponding parts throughoutthe several views.

The barrel of the device consists of a rear portion 11 and a forwardportion a, of the same inner and outer diameters, the portion 6 havingits rear end closed and its forward end provided with an exterior threadadapted to work in the interiorly-threaded open rear end of the forwardportion a. The forward end of the forward ortion c is open, and adaptedto receive tl ie diminished rear end of a pen-holder d by slidingcontact. A e is received within the interior longitudinal central hollowof the part d, as is also a grooved conduit f in a well-known manner.The rear end of the part d is diminished yet again to supply a seat forthe forward end of struction, which not only lessens the expense theelastic compressible ink-reservoir tube 7c, the latter being containedwithin the interior hollow of the barrel b-c and adapted to dischargeits contents through the hollow of the part (1. Within the hollow ofsaid barrel and lying upon and along the tube 7;, is a pressure-bar orfoot h, curved longitudinally to conform to the cylindrical curvature ofsaid tube, and adapted to compress the latter along nearly its wholeextent when the finger-piece g on said bar is pushed inward toward theinterior of said barrel.

As shown in Fig. 3, the character i designates a short longitudinal slotin the part b of the barrel, whose inner edges are all perpendicular toa certain plane except the rear edge 'n which is obliquely directedforward and corresponds to the oblique upper edge on of a groove orindentation in the rear edge of the finger-piece 9 adjacent to the outersurface of its pressure-bar h. The length of the slot i is sufficient topermit the finger-piece g to move through it, when the latter is movedforward, but when such finger-piece is pushed backward it is forcedoutward on account of the sloping edge m riding upward along the slopingedge a of said slot. The pressed in position of such finger-piece isindicated by the dotted lines in Fig. 2. The compression of the tube 7cexpels the air therefrom, and when the end of the part d is dipped intoa supply of ink, the tube becomes filled when the pressure-bar is liftedby the suction therein of the vacuum. As will be observed the slot '1',extends partly through the exteriorly threaded part of b, so that whenthe part c is turned thereover to approach the fingerpiece g, itsrearwardly moving edge contacts with the forward edge of thelinger-piece and presses it backward and upward over the rear obliqueedge a of said slot. WVhen the part c is turned to move it forward sothat its rear edge moves to the line of the forward edge of the slot i,the finger-piece g is released, and may be manually pressed down uponthe tube Is.

There are several advantages accruing from the adoption of this form ofconstruction of a self-filling fountain-pen. Among them, are thefollowing. Simplicity of conof making but also renders the manufactureof the barrel easier, and the assembling of the parts and their contentsmore facile. Repairs of same, and substitution of parts are easier thanin a barrel of one piece. The device as a whole, as depicted in Fig. 1is smooth and devoid of cumbersome projections or additions, since theparts 5 and c are of the same outer diameter throughout, with a cap a ofbut little greater size, and the whole is thus rendered more sightly inappearance.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is:

1. In a self-filling fountain pen, in combination, a barrel formed oftwo hollow communicating parts, one part having a slot, an elastic inreservoir in said barrel, a pressure-bar having a rib projecting throughsaid slot, and one of said parts being formed at one end to movelongitudinally upon that portion of the other part which includes saidslot.'

2. Inga self-filling fountain-pen, in combination, a barrel formed oftwo hollow communicating parts, one part being exteriorly threaded atone end and one end of the other I l l I i I 1 I 1' part beinginteriorly threaded to screw upon the other part, the 'eXteriorlythreaded part having a slot in the elastic ink-reservoir in said barrel,and a pressure-bar in said barrel having a rib projecting through saidslot.

3. In a self-filling fountain-pen, in combination, a barrel formed oftwo communicating members having a connection whereby one member maymove longitudinally upon the other, and one of said members beingslotted in the path of movement of the other member, such slot having asloping rear edge, an elastic inlereservoir in said barrel, apressure-bar in said barrel having a rib projecting through said slot,such rib having a notch on its rear end with the upper edge of suchnotch sloping toward the said bar.

Signed at Waterloo, Iowa, this 9th day of April, 1908.

VJILLIAM A. WELTY. Vv itnesses O. D. YOUNG, G. G. KENNEDY.

path of the other part, an

